106 auric ulid^. 



Ellobium Oparicum, H. and A. Adams in Proc. Z. S. 1854, p. 9. 



n. 18 ; Gen. rec. Moll. ii. p. 237. 

 Auricula Oparica, Pfr. Syn. Auric, n. 143 ; Mun. Auric, p. 139. 



Hub. Opara, Society Islands. 



23. Auricula semiplicata. 



Shell imperforate, rather cylindrical, olivaceous-fulvous ; spire 

 short, terminating in a blunt, eroded cone ; whorls about six, 

 the penultimate one flat, marked with slightly arched striae, the 

 last forming two-thirds of the total length, folded above, smooth 

 on the remaining part, rounded at base ; aperture rather oblique, 

 narrowly semiovate, three-plaited; one middle-sized, compressed 

 plait near the columella, and two parallel, nearly perpendicular 

 plaits upon the columella; peristome simple, straight, right 

 margin slightly sinuate. Length 14, greatest breadth 5 mill. 



Ellobium semiplicatum, H. and A. Adams in Proc. Z. S. 1854, 



p. 8. n. 15 ; Gen. rec. Moll, ii. 237. 

 Auricula semiplicata, Pfr. Syn, Auric, n. 144; Novit. Conch, i. p. 19. 



n. 31. t. 6. f. 3, 4 ; Mon. Auric, p. 139. 

 Ilab. Singapore (Taylor). 



24. Auricula saccata. 



Shell shortly and deeply riinate, club-shaped, solid, faintly 

 striated, irregularly eroded, slightly shining, fuscous-yellow; 

 spire elongately conic, pointed; suture flat, irregular; whorls 

 eight to nine, flat, the last almost as long as the spire, dilated 

 towards the base, which is swollen; aperture perpendicular, 

 narrowly ovate ; parietal plait single, small, rather transversely 

 placed on the middle ; columellar plait indistinctly bidenticu- 

 late ; peristome blunt ; right margin sinuate above, thickened 

 within at its middle part ; columellar margin dilated, callous, 

 spreading. Length 14, greatest breadth 6 mill. 



Ellobium elongatum, var., H. and A. Adams in Mas. Cuming. 

 Auricula saccata, Pfr. in Proc, Z. S. 1854, p. 121 ; Syn. Auric. 



n. 145 ; Mon. Auric, p. 140. 

 Ellobium saccatum, H. and A. Adams, Gen. rec. Moll. ii. p. 237. 



Hub. Manilla (H. Cuming). 



25. Auricula elongata. 



Shell subrimate, fusiformly cylindrical, faintly striated longi- 

 tudinally, slightly shining, of a blackish chestnut colour or 

 greenish-fulvous ; spire conic, with rather convex outlines, and 

 the apex pointed, often truncate ; suture linear, irregular ante- 

 riorly ; whorls seven, flat, the last a little longer than the spire, 



